HLP was very late actually in terms of other freespace communities i visited.
As i was very active in Multiplayer back in the day i found myself in a mutliplayer squadron which had its own site and forum board. So i got some freespace news through that (and later other games like EVE and Starlancer that were actively played)
Have to admit, back in the day my source for new missions and campaigns was only VolitionWatch (RIP). After that went down or was set to archive mode, i had to look for other sources for new campaigns.
Even my focus was actually more into multiplayer coop campaigns back then, as we played through (nearly?) all of them from VW.
But what i have to say? I am not even sure if ever a new coop campaign was released on HLP, but i found some complete new single player experiences instead. Back then some in the squadron (myself included) converted some of them into Coop versions. But as the campaigns got more complex due to SCP together it got more difficult to even organize a four players coop run it died slowly.
This is actually my second account here. I was registered ~15 years ago already. But well... things did not worked out very well already then as a young girl on the brink to be a game developer.
Well, 15 years later nothing really changes, as visionaries are always stubborn heads, regardless of their age. So still hard times for me here
But now through working life I have significantly more experience to assert myself in this treadmill dominated by men.